Calcutta: Calcutta is poised to claim the crown of most polluted Indian city from Delhi this winter.
The central pollution control board's Air Quality Index (AQI) shows the city ahead of the capital in this winner-loses-all race, based on the severity of pollution in some locations.
Independent reports generated by a pollution measuring Android app called Plume Air Report suggest that Calcutta's air quality is even worse than some of the world's more lung-unfriendly cities.
According to the Central Pollution Control Board, the city has been experiencing the worst spell of air pollution this year since December 23.
The AQI, calculated after collating data sourced from various government agencies on different kinds of air pollutants, including particulate matter, shows that the average pollution count between December 23 and 27 was 363. A count above 300 is categorised as "very poor".
On December 25, the AQI spiked to 414, which is considered "severe". Pollution at this level can "affect healthy people and seriously impact those with existing diseases". The AQI varied between "very poor" and "poor" over the next two days.
The index is calculated on the basis of the dominant pollutants in an area, which in most parts of India is the concentration of particulate matter. The figures highlighted by Metro are from the pollution monitoring centre at Rabindra Bharati University. Victoria Memorial, the other centre in Calcutta, generated less data.
Pollution researchers believe that the data from Rabindra Bharati is more representative of the city since the monitoring station at Victoria Memorial is housed amid greenery.
29/12/16 Jayanta Basu/Telegraph
To Read the News in full at Source, Click the Headline
The central pollution control board's Air Quality Index (AQI) shows the city ahead of the capital in this winner-loses-all race, based on the severity of pollution in some locations.
Independent reports generated by a pollution measuring Android app called Plume Air Report suggest that Calcutta's air quality is even worse than some of the world's more lung-unfriendly cities.
According to the Central Pollution Control Board, the city has been experiencing the worst spell of air pollution this year since December 23.
The AQI, calculated after collating data sourced from various government agencies on different kinds of air pollutants, including particulate matter, shows that the average pollution count between December 23 and 27 was 363. A count above 300 is categorised as "very poor".
On December 25, the AQI spiked to 414, which is considered "severe". Pollution at this level can "affect healthy people and seriously impact those with existing diseases". The AQI varied between "very poor" and "poor" over the next two days.
The index is calculated on the basis of the dominant pollutants in an area, which in most parts of India is the concentration of particulate matter. The figures highlighted by Metro are from the pollution monitoring centre at Rabindra Bharati University. Victoria Memorial, the other centre in Calcutta, generated less data.
Pollution researchers believe that the data from Rabindra Bharati is more representative of the city since the monitoring station at Victoria Memorial is housed amid greenery.
29/12/16 Jayanta Basu/Telegraph
0 comments:
Post a Comment